zend-blog-3-backend

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<?php
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/**
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 * Created by PhpStorm.
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 * User: morontt
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 * Date: 18.06.15
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 * Time: 0:18
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 */
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namespace App\Cron;
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interface CronServiceInterface
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{
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    public function run(): void;
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    /**
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     * @return string|null
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     */
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    public function getMessage(): ?string;
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}
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